Surgical knife



FIG. 1 is a front perspective view of a surgical knife showing my newdesign;

FIG. 2 is a front view thereof, the rear view being a mirror image ofFIG. 2;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is an enlarged view of the portion indicated by line 6-6 in FIG.1;

FIG. 7 is an enlarged view of the portion indicated by line 7-7 in FIG.2;

FIG. 8 is an enlarged view of the portion indicated by line 8-8 in FIG.3;

FIG. 9 is an enlarged view of the portion indicated by line 9-9 in FIG.4; and,

FIG. 10 is an enlarged view of the portion indicated by line 10-10 inFIG. 5.

The features shown in broken lines in the drawings depict environmentalsubject matter only and form no part of the claimed design. Thedashed-dotted lines denote the boundary of the claim and form no part ofthe claimed design.

CLAIM The ornamental design for a surgical knife, as shown anddescribed.